Error start the server

[NavaTux]

what is the solution for both? How it causes?
This error also happened when i click the URL.

CAUGHT ERROR: error-badarg
[{erlang,hd,[[]]},
 {web_index,body,0},
 {element_template,eval_callbacks,2},
 {element_template,eval,2},
 {element_template,eval,2},
 {element_template,eval,2},
 {element_template,eval,2},
 {element_template,eval,2}]
CAUGHT ERROR: error-badarg
[{erlang,hd,[[]]},
 {web_index,body,0},
 {element_template,eval_callbacks,2},
 {element_template,eval,2},
 {element_template,eval,2},
 {element_template,eval,2},
 {element_template,eval,2},
 {element_template,eval,2}]



On Mar 23, 10:15 pm, Fred Hebert <monon...@REDACTED> wrote:
> {listen,eaddrinuse} usually means the port is already used on this operating
> system.
>
> On Tue, Mar 23, 2010 at 1:11 PM, NavaTux <navaneetha...@REDACTED> wrote:
> > Eshell V5.6.5  (abort with ^G)
> > (nitrogen@REDACTED)1> Recompile: ./src/pages/web_index
>
> > i use nitrogen framework,whenever i started my web app,http://
> > localhost:8000
> > the error shows the follwed one:
> > what does it mean elaborately?
> > what is the solution?
> > how to identify the errors easily ??#generic question
>
> > =ERROR REPORT==== 23-Mar-2010::22:05:02 ===
> > Failed initiating web server:
> > undefined
> > {{listen,eaddrinuse},
> >  {child,undefined,
> >        {httpd_acceptor,{0,0,0,0},8000},
> >        {httpd_acceptor,start_link,
> >                        [<0.69.0>,ip_comm,
> >                         {0,0,0,0},
> >                         8000,httpd_conf__0_0_0_0__8000,15000]},
> >        permanent,1000,worker,
> >        [httpd_acceptor]}}
>
> > =INFO REPORT==== 23-Mar-2010::22:05:02 ===
> >    application: navatest
> >    exited: {shutdown,{navatest_app,start,[normal,[]]}}
> >    type: temporary
>
> > ________________________________________________________________
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>
>